Multiple men and women Bisexual pornography features one woman and two men who gay bear porn all perform sex acts on each other. There are number of types of sex parties: Swinger party/gathering A swinger party or partner-swapping party is a gathering at which individuals or couples in a committed relationship can engage in sexual activities with others as a recreational or social activity. Use of the agreed safeword is seen by some as an explicit withdrawal of consent. In more vigorous forms of fisting, such momporn as punching or punchfisting, a fully clenched fist may be inserted and withdrawn slowly. Bestiality is illegal in many countries. A male voyeur is commonly labeled Peeping Tom, a term which originates from the Lady Godiva legend. Lying face down on a comfortable surface such as a mattress or pillow, the penis can be rubbed against it. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. On May 27, 2010 the television program The Doctors discussed the topic with dozens of teens, parents, and professionals. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. Likewise, Fox Broadcasting Company has also dedicated an entire evening programming block to adult animation programs, known as Animation Domination. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. A crush fetish is a fetish in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. Jerk off instruction anime hentai features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm. Often, strong views are expressed with regard to anal sex; it is controversial in various cultures, especially with regard to religion, commonly due to prohibitions against anal sex among gay men or teachings about the procreative purpose of sexual activity.